ISO standards of dental burs
1.Shapes of cutting head
Click on picture to enlarge.
2. Shaft diameter and length
Turbine or Friction Grip (FG) Type
These burs are for high speed rotation. It has shaft diameter of always 1.6mm and has a free end. The ISO number defines the length of each bur.
Angle or Right Angle (RA) Type
These burs are used for medium speed rotation contra-angle handpieces. it has shaft diameter of always 2.35 mm and has a notch at the end. The ISO number defines the length of each bur.
Hand Part or Hand Piece (HP) Type
These burs are commonly used with handpieces both in clinics and laboratories. It has shaft diameter of always 2.35 mm and has a free end. The ISO number defines the length of each bur.
3. Cutting Head Material
Tungsten Carbide - ISO 500
Its working part consists of alloy. (We do not manufacture this type of cutting head)
Diamond - ISO 806
By means of electroplated technology, the diamond powder is hereby plated to the shaft according to the shapes and the grit sizes.
4. Grit Size
The colours below are painted in the neck of the bur.
Black, super-coarse. Grit size 180 μm.
Green, coarse. Grit size 150 μm.
Blue, medium. Grit size 106 μm.
Red, fine. Grit size 63 μm.
Yellow, super-fine. Grit size 40 μm.
White, ultra-fine. Grit size 14 μm.
5. Diameter of head
Measured in 1/10 mm (eg. for 0.5 mm, code: 005; for 4.2 mm, code: 042).
HOW TO ORDER
Cutting head material
Tungsten Carbide = 500
Diamond = 806
Shaft diameter & length
Turbine = 3xx
Right-angle = 2xx
Handpiece = 1xx
Shape of cutting head
Black (super coarse grain) = 544
Green (coarse grain) = 534
Blue (medium grain) = 524
Red (fine grain) = 514
Yellow (superfine grain) = 504
White (ultrafine grain) = 494
Max. diameter of head (ball)